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【单选题】
当测得热电偶两端电压差为0.317伏,参考端温度为500度,则该热电偶测得的温度为___。(分度表如下图所示)A.
508度
B.
492度
C.
8度
D.
500度
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举一反三
【单选题】导线全长620m,算得x坐标增量闭合差为0.12m,y坐标增量闭合差为-0.16m,则导线全长相对闭合差为( )。
A.
1/2200
B.
1/3100
C.
1/4500
D.
1/4500
【单选题】在导线计算时，坐标增量闭合差fx=-0.08m、fy=+0.07m，导线总边长为475.74m，则导线全长相对闭合差为（ ）。
A.
1/4400
B.
1/2000
C.
1/440000
D.
1/5400
【单选题】听力原文：M: Hello. W: Is this Mr. Green's office? M: Yes, it is. W: Is he there? M: I'm sorry, he isn't. He's at a meeting this morning. W: What time will he be back? M: He'll be back after two o'clock bu...
A.
Answering the phone.
B.
Having a meeting.
C.
Working in the office.
【简答题】Unfortunately, when I dropped in, Doctor Li _____ for Beijing to join in the fight again SARS, so we only had time for a few words. A. just left B. has just left C. is just leaving...
【单选题】导线全长620m,算得x坐标增量闭合差为0.12m,y坐标增量闭合差为-0.16m,则导线全长相对闭合差为( )。
A.
1/2200
B.
1/3100
C.
1/4500
D.
1/15500
【单选题】Unfortunately, when I arrived she ______, so we only had time for a few words.
A.
just left
B.
has just left
C.
was just leaving
D.
had just left
【单选题】某导线全长620m,算得x坐标增量闭合差为0.12m,y坐标增量闭合差为-0.16m,则导线全长相对闭合差为( )。
A.
1/2200
B.
1/3100
C.
1/4500
D.
1/15500
【单选题】---Is that Bruce speaking? ---Sorry, he is out. He _______abroad on business.
A.
has gone
B.
has been
C.
went
D.
goes
【简答题】A．He was sorry they could never play ball together. B．He was sorry he could never tell story to him. C．He was sorry he was too old to play basketball and stuff. D．He was sorry that he was too occupied...
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